we wish to thank all those who, directly or indirectly, have contributed to making this book possible. Without rigid classification and in no particular order, we rely on our memory to recall them with our greatest affection.
First of all we thank all the members of the Perception and Memory Laboratory at the Institut Pasteur for their assistance and their readiness to share the joys of research.
We are grateful to Gilles Gheusi, Pierre-Jean Arduin, Dominique Martinez, and Serge Picaud for having agreed to read the manuscript in whole or in part. Their remarks, on form or fact, have certainly contributed to improving it significantly.
We express our gratitude to two colleagues, Henri Korn and Jean-Pierre Changeux, for their valuable and sustained exchanges, and their ever enlightened advice.
Finally our thanks would not be complete if I had not had the good fortune to have beside me Pascale, Isabel, and Clément, as well as Daniel, Jean-Bernard, Dominique, Gérard, and Christian, with their generous support.
Above all, thanks to Pierre-Marie Lledo and all his team at the Institut Pasteur for our mutual understanding.
(p.xii) To Philippe Vernier, my faithful friend, who welcomed me to his research team on Neurobiology and Development at the Alfred Fessard Institute of Neurobiology (INAF), where he so brilliantly succeeded me.
To Odile Jacob and Bernard Gotlieb for their constant support, and Jean-Luc Fidel, without whom this book would not exist.
To Hélène Hryn for her help in using an instrument that terrifies me, the computer.
To my friend Jean-François Moueix for his discreet presence at my side on the paths of the selva obscura.
To the wanderers in the hills, the Chief and the Colonel, without whom the Bordelais countryside would be less beautiful. To the Lysottes, lord and lady of the manor of Gourgue, for their amiable sovereignty.
Finally, to the Verdiers, Mamie, Alain, and Kéké, and to René Biandon, my epigenetic family.